One of the objectives of the StoreMore project is to analyze and catalogue sustainable energy storage solutions based on their technical, financial, and environmental characteristics. As part of this effort, a dedicated project activity evaluates the environmental impacts of preselected storage technologies to support the development of both an energy storage modeling tool and a renewable energy source (RES) optimization tool.

This activity includes the preparation of a report conducting an environmental feasibility analysis of the shortlisted energy storage options. The analysis evaluates environmental impacts across a variety of contexts, ensuring the generation of high-quality data to inform the Catalogue of Sustainable Energy Storage Solutions (CSESS). The shortlisted energy storage solutions:

• Gravity-Based Storage
• Flywheel Energy Storage
• Hydrogen Energy Storage
• Vanadium Redox Flow Batteries
• Ultracapacitors

The task is coordinated by Békéscsaba, City of County Rank, with implementation managed by its municipal energy entity, Békéscsaba Smart Management Kft. The work is divided into two main parts:

• The Inception Report established the methodological foundation for the environmental impact assessments. It introduces the Comparative Environmental Rating Methodology, which forms the core of the assessment process. Additionally, the report includes a detailed work plan, a refined methodology, and review of available data sources for Gravity-Based Storage and Flywheel Energy Storage - which serve as examples of the applied approach. Thus, the Inception Report defines the scope and methodological framework of the final analysis and acts as a checkpoint to validate the assessment approach before further resources are allocated
• The Final Report – this work - applies the methodology defined in the Inception Report and follows the outlined work plan for the two assigned technologies. Meanwhile, the remaining technologies are being analyzed in parallel by other consortium partners, using the same methodological basis. The environmental assessment of the remaining three technologies is carried out by other project partners within the consortium.